It's good for what it is, but it could have had a more interesting story and should have presented more varied set pieces and enemy varieties. The final section isn't that great because it changes the rules of how you play, but at the same time, it's only about 30 minutes at most. The majority of the game is very fluid and constant. Moving around and snapping to different walls, rocks, and crates allows you to quickly get a grasp on any situation and take out everyone. The final section becomes a rhythm game with the final "boss", and it promotes the most boring style of play ever that is often associated with cover shooters, sitting in one spot and hoping people peak a little bit. Whereas before, it was like Halo with a third-person view and snappy bobbing and weaving through the environment while making use of whatever weapons you can find or places you can get behind in these tight and well-crafted combat areas. The puzzles are also great and feel extremely natural and we could have used a few more near the end.